Here's a DriveDx triumph. DriveDx showed my just out of AppleCare iMac with two pre-fail conditions for the hard drive. Made appointment and took it to Genius Bar yesterday. Tech looked at DriveDx and was very impressed. Even though out of warranty - they replaced the drive without question. God knows how many dollars and troubles DriveDx saved me since I had several vital FinalCut projects on it.

As a photographer, I’m always concerned about drive failure because I know it will happen to all of my drives. What I don’t know is when.
DriveDx exposes low-level information of internal sensors, pre-fail indicators and lifetime accumulators of information that have allowed me to anticipate problems before they affect my system. As a result, I sent external drive back to LaCie for exchange under warranty due to anticipated drive failure. This is one of the best investments you can make in your system. I recommend it highly.

A couple of days ago, DriveDx warned me (pre-failing) for one of my external drives. I don't use it any more for backup. After DriveDx warning, drive behaved abnormally, I heard loud clicking noises and I got warnings from OS X as the drive unmounted abnormally while it was not the case. Thanks to DriveDx. Best in its class. Excellent tech support.

Absolute Must for the OS 'Toolkit'! I was having some serious issues with an SSD hybrid drive on my macbook pro, and well since seagate doesn't support mac, their 'seatools' software was useless (and required) for getting a proper exchange. That one event way more than paid for the price of the software. THIS software generated a report that was acceptable for me to get my exchange, and before the drive died completely. Got my replacement drive and I will most certainly never go back to not having it installed.

Just in Time! I downloaded DriveDx and discovered that the second HDD in my MacbookPro (in the superdive location) was having "failing warnings", although DiskUtility said the drive was OK. So I decided that I had to replace it. I did that and enclosed the failing disk in an external enclosure to use it some more. A week later I began to have serious issues with the failing disk and ditched it. I am very happy with DriveDx, worth the money on all accounts.

I have a not so supported fusion drive in my Macbook Pro. There has never been any way to see the S.M.A.R.T. status. Decided to give this a try and the first thing that pops up is that my Crucial M4 SSD was close to failure because of a bug in the microcode. I have not tried to use this to look at my USB attached drives, since the only one I have is a small external that I boot from in emergencies. But DriveDx not only clearly sees both drives making up my fusion drive, but it also shows me the status of my 3 eSATA drives.

Key Features

Advanced Drive Health Diagnostics

Regular diagnostic tools simply check the built-in S.M.A.R.T. status of the drive, which provides the user with little information about the actual state of the physical drive. As opposed to such tools, DriveDx analyzes the current state of the drive using all the drive health indicators that are most likely to point to a potential drive issue (for instance, SSD wear out / write endurance, I/O errors, pending sectors, reallocated bad sectors, etc). See competitive analysis against several popular products here

Drive Failing (Pre-fail) State Detection

Unlike most other tools, DriveDx detects not only “OK/Verified” and “Failed” drive health states, but also the “Failing (Pre-fail)” drive state. Thanks to that, you will detect problems much earlier than when using any other SMART monitoring utilities. This means that you have more chances to save your critical data before any data loss actually occurs. Learn more

Real-time Drive Health Monitoring

DriveDx runs in the background and periodically performs checks to determine the health of your SSD or HDD. When any issue or problem is found, it alerts you immediately. DriveDx acts as an “early warning system” for pending drive problems. As a result, you have more chances to save your critical data before any data loss actually occurs.

Early Warning System

DriveDx features a special multi-tier warning system that will inform the user about deviations from the normal state of drive attributes. It constantly monitors each S.M.A.R.T. attribute (and its change dynamics) and starts continuously warning the user as the drive degrades. On the initial stages of drive degradation, the user will receive notifications of the Warning type, then Failing (means that this drive parameter is in a pre-failure state) and only then Failed. Learn more

Drive Self-tests

DriveDx allows you to start and control diagnostic self-tests of SSD / HDD. The primary goal is to quickly identify if the drive is faulty. Usually self-tests consist of a collection of test routines like electrical and/or mechanical performance tests as well as the read performance test of the drive. Depending on self-test type it does read scan of a small area or the entire media. Learn more

Modern SSDs and HDDs Support

When evaluating the state of various drives, DriveDx can use different heuristic algorithms depending on the drive model and even its firmware version. One of the key advantages of the software is that the state of HDD and SSD drives is assessed using different algorithms, since many state indicators of HDD drives are not applicable or make no sense for SSD drives.

Automatic E-mail Reports

The user can get problem notifications and drive status reports to email. Reporting can be configured on the basis of various criteria. Thanks to this feature, the user does not need to have physical access to a specific computer all the time, which is especially useful for all kinds of server rooms, data centers, etc.

A modern, good-looking and user-friendly interface

DriveDx is one of the first drive diagnostic tools created in the true Mac style. All interface elements are clear and intuitive, so it will only take you a few minutes to learn the basics and start using the program. When a problem is identified, you will see a notification on the desktop and the status bar will show the status of your drives. Learn more

Drive Key Metrics Evaluation

DriveDx calculates various ratings of the current status of key drive characteristics (percent values):

Thanks to these features, users can now have a fuller and better understanding of the current state of their drive.

Drive Free Space Monitoring

Mac OS X and applications might fail due to an inability to allocate storage space. In addition, low disk space might cause disk fragmentation. To avoid data loss and to ensure the continuous functioning of your computer it is important to monitor the amount of available storage space on your drive. DriveDx can automatically monitor free disk space and will alert user immediately if user defined free space threshold exceeded. Learn more

DriveDx is the most advanced SSD & HDD diagnostic and monitoring utility!